This week

The crazy comedy “Bach at Leipzig” closes the mainstage performance season at Portland Stage Company.

The play, directed by Samuel Buggeln, previews Tuesday through Thursday, opens Friday and runs through May 23. Written by Itamar Moses, it’s set in Germany in 1722 and involves the competition among eight musicians to become the new organist at Leipzig Cathedral. Johann Sebastian Bach is among the musicians vying for the post. It’s a funny story full of wit, wordplay and swordplay.

The cast includes several actors well known to Portland audiences, including Tom Ford, Dustin Tucker, Daniel Noel, Ron Botting and Tom Butler. Also appearing is Portland Stage newcomer Colby Chambers.

Tickets are $13 to $36 and are available by calling 774-0465 or visiting www.portlandstage.org.

Coming up

The Midcoast Symphony Orchestra will perform the final concert series of its 20th anniversary season under music director Rohan Smith at 7:30 p.m. Saturday in Lewiston and 2:30 p.m. May 16 in Topsham.

Maine pianist Anastasia Antonacos will perform Brahms’ Piano Concerto No. 1 in D minor. The orchestra will also perform a number of selections by both father and son Strauss, including the overture to “Die Fledermaus” and a number of waltzes.

Antonacos is a member of the faculty at the University of Southern Maine.

Saturday’s performance in Lewiston will be at the Franco American Heritage Center, 46 Cedar St. On May 16, the show will be at the Orion Performing Arts Center at Mt. Ararat Middle School, 66 Republic Ave., Topsham.

Tickets are $15 at www.midcoastsymphony.org, Gulf of Maine Books in Brunswick, Magnolia in Bath and at each performance. For information or to purchase by phone, call 846-5378.

There are lots of good music shows coming up in May. Here are three we particularly like:

Irish fiddler Martin Hayes and American guitarist Dennis Cahill perform at 8 p.m. Saturday at One Longfellow Square, 181 State St., Portland. Tickets cost $22. Visit www.onelongfellowsquare.com.

Also at One Longfellow Square, Michelle Shocked makes a long-anticipated return at 8 p.m. May 15. Tickets cost $35.

Shemekia Copeland, a Grammy nominee and unofficial queen of the blues, performs May 29 at the Landing at Pine Point in Scarborough. Call 774-4527 for details.